\value{
An object of class "yule" (see \code{\link{yule}}).
}
-\author{Emmanuel Paradis \email{Emmanuel.Paradis@mpl.ird.fr}}
+\author{Emmanuel Paradis}
\seealso{
\code{\link{branching.times}}, \code{\link{ltt.plot}},
\code{\link{birthdeath}}, \code{\link{yule}}, \code{\link{yule.cov}}